What trees are planted on both sides of Hengxiang Street in Baoding?

This buttonwood tree has been planted. Hengxiang Street by the river, where I walk the most, is a lively place. There are plane trees on both sides of Hengxiang Street. In these years, I have never seen such a thick plane tree. Even when I first saw this tree, I didn't know what it was. Go along this street for one kilometer. This is a big tree that amazes me, and it also symbolizes some history of this city. Later, I went to Jinan, Hangzhou and Nanjing. There are more or even thicker buttonwood trees in these cities, especially in Nanjing. Of course, the buttonwood tree in Nanjing is very famous. At least the buttonwood tree in Baoding enlightened me, so I have the mind to observe other places.